英国《自然》期刊22日发表的一篇化石学论文,提出了一种与恐龙演化关系史相关的新假说。这一假设挑战了一个多世纪以来的固有观点,提出了将恐龙重新分为两大新类别这一根本性的新分类方式。如果这一假说得到确立,恐龙谱系树可能需要重写。约130年来,恐龙一直被分为两大演化分支:骨盆与鸟类相似的鸟臀目恐龙,以及骨盆与爬行动物相似的蜥臀目恐龙。鸟臀目恐龙包括禽龙等 A fossil science thesis published on the 22nd in the journal Nature in the United Kingdom proposed a new hypothesis related to the history of the evolution of dinosaurs. This assumption challenges the inherent point of view for more than a century, proposing a fundamental new classification of dinosaurs into two new categories. If this hypothesis is established, the dinosaur pedigree tree may need to be rewritten. For about 130 years, the dinosaurs have been divided into two evolutionary branches: the bird-hip-billed dinosaur with pelvis similar to birds, and the lizard-billed dinosaur with pelvis similar to reptiles. Bird hip head dinosaurs, including birds and other birds